Ad hoc, ad hoc, and quid pro quo So little time so much to know! These lyrics are fluid-a changeable thing-so Billy Bitz will make them up while he sing I've got a pain in my SIDE A pain in my HEAD Look out, [muthafucker, people] They call me NASTY FRED! Nasty Fred [so nasty] Nasty Fred [really nasty] Naaaaaaaasty Fred